linux-kernel - [PATCH v2 09/12] arm64: dts: qcom: msm8994: Add PSCI node

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Message-Id: <20200623224813.297077-10-konradybcio@gmail.com>
Date:   Wed, 24 Jun 2020 00:48:08 +0200
From:   Konrad Dybcio <konradybcio@...il.com>
To:     skrzynka@...radybcio.pl
Cc:     Konrad Dybcio <konradybcio@...il.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Kees Cook <keescook@...omium.org>,
        Anton Vorontsov <anton@...msg.org>,
        Colin Cross <ccross@...roid.com>,
        Tony Luck <tony.luck@...el.com>, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 09/12] arm64: dts: qcom: msm8994: Add PSCI node

Add PSCI node to enable multi-processor startup.

Note that not every 8994 device firmware supports PSCI,
and even if, then it can only start the cores and not
shut them down.

Signed-off-by: Konrad Dybcio <konradybcio@...il.com>
---
 arch/arm64/boot/dts/qcom/msm8994.dtsi | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/msm8994.dtsi b/arch/arm64/boot/dts/qcom/msm8994.dtsi
index b3c01ebc5c67..9eec8ab6bf2c 100644
--- a/arch/arm64/boot/dts/qcom/msm8994.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8994.dtsi
@@ -159,6 +159,11 @@ pmu {
 		interrupts = <GIC_PPI 7 (GIC_CPU_MASK_SIMPLE(4)| IRQ_TYPE_LEVEL_HIGH)>;
 	};
 
+	psci {
+		compatible = "arm,psci-0.2";
+		method = "hvc";
+	};
+
 	reserved-memory {
 		#address-cells = <2>;
 		#size-cells = <2>;
-- 
2.27.0